How to calculate Body Mass Index
Body Mass Index is a simple calculation using a person’s height and weight. The formula is BMI = kg/m2where kg is a person’s weight in kilograms and m2is their height in metres squared.
A BMI of 25.0 or more is overweight, while the healthy range is 18.5 to 24.9. BMI applies to most adults 18-65 years.
Who shouldn'tuse a BMI calculator
BMI is not used for muscle builders, long distance athletes, pregnant women, the elderly or young children. This is because BMI does not take into account whether the weight is carried as muscle or fat, just the number. Those with a higher muscle mass, such as athletes, may have a high BMI but not be at greater health risk. Those with a lower muscle mass, such as children who have not completed their growth or the elderly who may be losing some muscle mass may have a lower BMI. During pregnancy and lactation, a woman's body composition changes, so using BMI is not appropriate.
For more information, visitHealth Canada's Canadian Guidelines for Body Weight Classification in Adults.
Calculate your Body Mass Index
This is only to be used as a decision support tool and is subject to these terms.
Virtual Diabetes Education Program
Newly diagnosed or need a refresher on diabetes management? Sign up now for practical tips, live sessions, and a supportive community—all from home.
About Us
Learn about our history, our connection to the discovery of insulin, our current operations, and our vision for the future.
Donate to Diabetes Canada
Every dollar received helps Canadians with diabetes live healthier lives and supports researchers in finding a cure.
Recipes
Choose from over 50 diabetes-friendly recipes that are perfect for any occasion!
